Nickel hydroxide sulfate nano belts: Hydrothermal synthesis, electrochemical property and conversion to porous NiO nanobelts

摘要

In this paper, single-crystalline Ni(SO_4)_(0.3)(OH)_(1.4) nanocrystals could be synthesized on a large scale by a facile hydrothermal treatment without using templates or organic additives. Ammonia concentration played an important role for the composition, phase structure and shape control of the the Ni(SO_4)_(0.3)(OH)_(1.4) nanobelts. Electrochemical measurement revealed that the as-prepared Ni(SO_4)_(0.3)(OH)_(1.4) nanobelts exhibited high specific capacity close to the theoretical capacity performance of β-Ni(OH)_2. On the other hand, the single-crystalline porous nickel oxide nanobeltsnanobelts can be obtained through calcination of the Ni(SO_4)_(0.3)(OH)_(1.4). nanobelts.